======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '154'
                                          'artist'  'George & Louis'
                                     'text_people'  ''
                                         'release'  '100 Oldies Deel 119'
                                           'title'  'The Return Of Jerry Lee'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  '["rock \'n\' roll", \'50s\', \'sun records\']'
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '84'
                                      'tracktotal'  '100'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted'
                                             'bpm'  '121.8'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '100 Oldies Deel 119'
'TBPM' (BPM (beats per minute))                     '121.8'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-unsorted'
'TENC' (Encoded by)                                 'Mister X'
'TIT2' (Title/songname/content description)         'The Return Of Jerry Lee'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'George & Louis'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '84/100'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ["rock 'n' roll", '50s', 'sun records']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.68 dB'
'TXXX:replaygain_track_peak'                        '0.613288'

========================== row from database ==========================
                                              'id'  1321901
                                            'path'  /data/Music/Bulk/00poprockelectronic/100 oldies deel 119/84 George & Louis - The Return Of Jerry Lee.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  154
                                           'genre'  electronic-generic or radio-unsorted
                                        'filesize'  6617139
                                           'mtime'  1620565224
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic oldies deel 84 electronic generic radio unsorted
                                      'tag_artist'  George & Louis
                                     'tag_release'  100 Oldies Deel 119
                                       'tag_title'  The Return Of Jerry Lee
                                             'bpm'  121.8
                                    'search_title'  'jerry':4 'lee':5 'of':3 'return':2 'the':1
                                   'search_artist'  'george':1 'louis':2
                                  'search_release'  '100':1 '119':4 'deel':3 'oldies':2
                                     'search_rest'  '00poprockelectronic':1 '84':4 'deel':3 'electronic':5 'generic':6 'oldies':2 'radio':7 'unsorted':8
                                    'search_combo'  '00poprockelectronic':12 '100':8C '119':11C '84':15 'deel':10C,14 'electronic':16 'generic':17 'george':6B 'jerry':4A 'lee':5A 'louis':7B 'of':3A 'oldies':9C,13 'radio':18 'return':2A 'the':1A 'unsorted':19
                                    'tag_tracknum'  84
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-3', 'q-other-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ["rock 'n' roll", '50s', 'sun records']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620565224.490378  (2021-05-09 15:00:24)
                             'size'  6617139